code: def test_view_angle(camera):
      assert camera.GetViewAngle() == camera.view_angle
      view_angle = 60.0
      camera.view_angle = view_angle
      assert camera.GetViewAngle() == view_angle
  
imports: import io
  import numpy
  import pytest
  import pyvista
label_desc: Use image node_id 18 for calling a global function with example usage: test_view_angle(camera) without return types